Utilization of Copper slag as Fine aggregate in Bituminous Mix – a review

Industrialization of the world in 20th Century leads to production of huge industrial waste all over the world became a environmental issue. The recent researchers are focusing on the safe disposal of this solid waste. The use of solid waste from the copper industry called copper slag has the physical and mechanical properties resemble the fine aggregate utilized in the flexible pavement construction, hence it has the scope for the utilization of copper slag as fine aggregate partially or fully in the bituminous layer utilized in flexible pavement construction. Thereby the waste copper slag can be utilized as raw material for the road construction reduce the environmental issues and consumption of conventional fine aggregate obtained from the natural resources. This paper presents the comprehensive reviews on the possible use of copper slag as the substitute for conventional fine aggregate utilized in the pavement construction.